EP0972983B1 - Projecteur de croisement avec un segment réfléchissant pivotable - Google Patents

Projecteur de croisement avec un segment réfléchissant pivotable Download PDF

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Publication number
EP0972983B1
EP0972983B1 EP99890217A EP99890217A EP0972983B1 EP 0972983 B1 EP0972983 B1 EP 0972983B1 EP 99890217 A EP99890217 A EP 99890217A EP 99890217 A EP99890217 A EP 99890217A EP 0972983 B1 EP0972983 B1 EP 0972983B1
Authority
EP
European Patent Office
Prior art keywords
pivot
headlight
segment
dimmable
reflector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP99890217A
Other languages
German (de)
English (en)
Other versions
EP0972983A3 (fr
EP0972983A2 (fr
Inventor
Michael Aichinger-Rosenberger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZKW Group GmbH
Original Assignee
Zizala Lichtsysteme GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zizala Lichtsysteme GmbH filed Critical Zizala Lichtsysteme GmbH
Priority to AT99890217T priority Critical patent/ATE321975T1/de
Publication of EP0972983A2 publication Critical patent/EP0972983A2/fr
Publication of EP0972983A3 publication Critical patent/EP0972983A3/fr
Application granted granted Critical
Publication of EP0972983B1 publication Critical patent/EP0972983B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/09—Optical design with a combination of different curvatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • F21S41/331—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of complete annular areas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/67—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors
    • F21S41/675—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors by moving reflectors

Definitions

  • the invention relates to a dipped-beam headlamp with a reflective pivot segment in the region of the reflector edge.
  • Another object of the invention is to increase the luminous efficacy of the pivoting segment.
  • the invention provides that at least one zone is provided on a generally parabolic reflector, which forms in horizontal section at least approximately a part of an ellipse in one focal point is a light source and their other focus on the surface of a vertical axis pivotable pivoting segment is located.
  • the height of the zone with elliptical horizontal section corresponds approximately to the height of the pivoting segment.
  • pivoting segment is a separate component from the reflector.
  • the elliptical area is tuned to the pivot segment, that in the Nulischwenk ein the Swivel segment near edge beam of the ellipse area parallel to the optical axis and in the maximum pivot position of the schwenksegmentfeme edge beam of the ellipse area at right angles to the optical axis.
  • the pivoting segment can be planar or have a curved surface as well as scattering elements, in particular vertical grooves.
  • the actuation of the pivoting segment is not restricted and may be e.g. mechanically, hydraulically or preferably electronically via sensors and processors, which primarily detect the curve radius.
  • Figure 1 is a horizontal section in the plane of the lamp through a light collecting reflector / pivoting segment combination and Figures 2 to 4 show its practical realization, in which Figure 2 is an enlarged cross-sectional view Fig. 3 is a front view and Fig. 4 is a horizontal section of the corresponding combination headlamp insert is from which an automatic headlamp leveling shows.
  • a horizontal portion AB of a generally parabolic in horizontal section reflector is formed as a section of an ellipse, in one focal point of the associated lamp L and in the other focal point a reflective, about a vertical axis 12 pivotable pivot segment 14 is arranged.
  • the reflector has, so to speak, two floors as well as steps and transitions from the parabolic area to the ellipse area.
  • the marginal rays relating to the starting point A and the end point B of the ellipse region are related to a zero position and a maximum deflection position of the Swivel segments 14 located.
  • the zero position of the end point B is shown parallel to the optical axis OA, the light beam ⁇ lights more in the direction of travel.
  • the maximum deflection position the starting point A is imaged at right angles to the optical axis OA, the light beam ⁇ lights up more to the side.
  • a range of 90 ° can thus be illuminated in the illustrated embodiment.
  • the pivoting angle of the pivoting segment 14 can be selected as desired.
  • the floor with elliptical horizontal section thus aims at the pivot segment 14, the parabolic area gives the basic light distribution and the transition zones, which in the horizontal section of Fig. 1, the curve sections AC and BD serve the closed appearance of the reflector for the viewer.
  • the height of the area with elliptical horizontal section can be chosen so that the parabolic surface makes up about 2/3 of the reflector surface, as well as the elliptical area plus the transition zones the rest. This would for a H7 lamp a luminous flux distribution Parabolic area: ellipse area: transition area of 400: 150: 50 result.
  • the vertical section results in open spaces.
  • the basic structure of the vehicle lighting unit shown in FIGS. 2-4 is as follows: A provided with retaining tabs 2 frame 1 carries a cover 3 and has in the turn signal area on a rear wall 4, in which the socket for the turn signal is freely accessible. Furthermore, the frame 1 has two windows 5, behind which a double headlamp unit 6 is arranged, which is pivotable relative to a support bracket 7 of the frame 1.
  • the support bracket 7 has a ball head bearing 8, about which the double headlight unit 6 is pivotable, for which purpose a sliding pin drive 9 is mounted on the support bracket 7, which engages via a ball and socket connection 10 on the double headlight unit 6. In this way, automated headlight range adjustment can be carried out in the usual way. (Of the third pivot point is arranged laterally on the double headlamp unit 6 and not shown).
  • the double headlight unit 6 is connected via a sealing bellows 11 made of elastomeric material with the frame 1 and has no rear cover, so that the sockets for the respective lamps are directly accessible. This offers over previous designs a much reduced space requirements and greatly improved ease of use and greatly improved sauceabstrahlschkeit.
  • a drive motor 15 is fixedly connected to the double headlight unit 6, which can pivot about a pinion 16 in the auxiliary reflector segment 14 about an axis 12 in the Abstrahlweg of the Abblertztreflektors 13, which serves to illuminate the inside curve apron.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Aerials With Secondary Devices (AREA)
  • Golf Clubs (AREA)
  • Road Signs Or Road Markings (AREA)

Claims (6)

  1. Projecteur de feu de croisement comportant un réflecteur possédant au moins deux foyers, une source de lumière (L) étant disposée au niveau d'un foyer intérieur, ainsi qu'un segment pivotant réfléchissant,
    caractérisé en ce que
    le segment pivotant (14) est disposé au niveau d'un second foyer externe et peut être amené à pivoter, en fonction du rayon de la courbe, dans le trajet de rayonnement du projecteur.
  2. Projecteur de feu de croisement selon la revendication 1, caractérisé en ce que sur un réflecteur en général parabolique (13) est prévue au moins une zone qui forme, en coupe horizontale, au moins approximativement une partie (AB) d'une ellipse, la source de lumière (L) étant située au niveau d'un foyer de l'ellipse tandis que l'autre foyer est situé sur la surface d'un axe vertical du segment pivotant (14), qui peut pivoter autour d'un axe vertical (12).
  3. Projecteur de feu de croisement selon la revendication 1 ou 2, caractérisé en ce que la hauteur de la zone possédant une section horizontale elliptique correspond approximativement à la hauteur du segment pivotant (14).
  4. Projecteur de feu de croisement selon l'une des revendications 1 à 3, caractérisé en ce que le segment pivotant (14) est un composant séparé du réflecteur (13).
  5. Projecteur pour feu de croisement selon l'une des revendications 1 à 4, caractérisé en ce que la partie (AB) de l'ellipse est ajustée sur le segment pivotant (14) de telle sorte que dans la position de pivotement zéro, le rayon marginal (B), proche du segment pivotant, de la partie de l'ellipse est parallèle à l'axe optique (OA) et de sorte que, dans la position de pivotement maximal, le rayon marginal (A), éloigné du segment pivotant, de la partie de l'ellipse fait un angle droit avec l'axe optique.
  6. Projecteur pour feu de croisement selon l'une des revendications 1 à 5, caractérisé en ce que le segment pivotant (14) comporte un élément diffusant, notamment sous la forme de rainures verticales.
EP99890217A 1998-07-17 1999-07-01 Projecteur de croisement avec un segment réfléchissant pivotable Expired - Lifetime EP0972983B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT99890217T ATE321975T1 (de) 1998-07-17 1999-07-01 Abblendscheinwerfer mit einem reflektierenden schwenksegment

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0123998A AT500425B8 (de) 1998-07-17 1998-07-17 Abblendscheinwerfer mit einem reflektierenden schwenksegment
AT123998 1998-07-17

Publications (3)

Publication Number Publication Date
EP0972983A2 EP0972983A2 (fr) 2000-01-19
EP0972983A3 EP0972983A3 (fr) 2001-07-04
EP0972983B1 true EP0972983B1 (fr) 2006-03-29

Family

ID=3509622

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99890217A Expired - Lifetime EP0972983B1 (fr) 1998-07-17 1999-07-01 Projecteur de croisement avec un segment réfléchissant pivotable

Country Status (4)

Country Link
EP (1) EP0972983B1 (fr)
AT (2) AT500425B8 (fr)
DE (1) DE59913281D1 (fr)
ES (1) ES2262304T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10016882A1 (de) * 2000-04-05 2001-10-18 Philips Corp Intellectual Pty Beleuchtungseinrichtung und Verfahren zum Betreiben einer Beleuchtungseinrichtung
AT500562B1 (de) * 2003-10-28 2007-10-15 Zizala Lichtsysteme Gmbh Fahrzeugscheinwerfer

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1520656A (fr) * 1967-02-28 1968-04-12 Cibie Projecteurs Projecteur perfectionné à déviation de faisceau
DE2523643C3 (de) * 1975-05-28 1978-09-21 Hans-Joachim 4010 Hilden Schurig Reflektor mit einstellbarem Abstrahlwinkel
JPH0636321B2 (ja) * 1988-02-02 1994-05-11 株式会社小糸製作所 自動車用灯具
US5023758A (en) * 1989-11-13 1991-06-11 General Electric Company Single arc discharge headlamp with light switch for high/low beam operation
JPH076564Y2 (ja) * 1990-04-19 1995-02-15 株式会社小糸製作所 配光可変型自動車用前照灯
DE4418733A1 (de) * 1994-05-28 1995-11-30 Bosch Gmbh Robert Scheinwerfer für Fahrzeuge für Fern- und Abblendlicht
DE4419365B4 (de) * 1994-06-03 2005-01-05 Automotive Lighting Reutlingen Gmbh Kraftfahrzeugscheinwerfer mit einem Reflektor und einem Zusatzrefelektor
FR2727497A1 (fr) * 1994-11-30 1996-05-31 Valeo Vision Projecteur a elargissement de faisceau, notamment pour vehicule automobile
DE19634755B4 (de) * 1996-08-28 2008-01-31 Automotive Lighting Reutlingen Gmbh Beleuchtungseinrichtung eines Fahrzeugs
FR2759651B1 (fr) * 1997-02-18 1999-03-19 Renault Projecteur de vehicule automobile comportant un reflecteur fractionne en lames orientables

Also Published As

Publication number Publication date
DE59913281D1 (de) 2006-05-18
AT500425B1 (de) 2006-04-15
AT500425A1 (de) 2005-12-15
ATE321975T1 (de) 2006-04-15
AT500425B8 (de) 2007-02-15
ES2262304T3 (es) 2006-11-16
EP0972983A3 (fr) 2001-07-04
EP0972983A2 (fr) 2000-01-19

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